JPH0371900A - X-y plotter - Google Patents

Abstract

PURPOSE:To prevent the overload of a motor and to achieve miniaturization by a method wherein a pawl part is provided to the movable part of a carriage and the movable part is allowed to fall when the carriage is moved to the outside of a plotting region. to bring the pawl part into engagement with the frame of a main body and the carriage is held at a position out of the plotting region against the pressing force of a pinch roller. CONSTITUTION:During a period when a carriage 2 is moving from a left-hand plotting region in the right direction for the sake of paper feed operation, a solenoid for moving a movable part 19 up and down so that the movable part 19 is present at a rising position. A pawl part 19a is not brought into contact with the engaging part 30a of a frame and the carriage 2 passes to the right on the frame. After passage, the solenoid for driving a pen up and down in the carriage is operated to allow the movable part 19 to fall as shown by an arrow B so that the carriage comes to a falling position and the driving of a motor for operating a carriage slide is stopped. The carriage is pushed by a block 39 to be ready to move to the left but the fallen pawl part 19a is engaged with the engaging part 30a of the frame to be held at the position thereof. Since no load is applied to the motor in this state, the load to the motor is reduced.

Description

[Detailed Description of the Invention] [Summary] It relates to an X-Y plotter, particularly an x-Y plotter having an automatic paper feeding function.
Regarding the y block, we focused on the fact that the carriage has a movable part for moving the pen up and down, and made the carriage position self-maintained at a position outside the drawing area so that no load is placed on the servo motor, thereby reducing the size of the motor. For this purpose, a carriage that holds a pen movably up and down and slides linearly, a pinch roller and a Frixilan roller sandwich a recording paper, and the carriage slides the recording paper along the surface of the paper. It is equipped with a recording paper moving means that moves the recording paper linearly in a direction perpendicular to the operation, and a paper feeding mechanism that feeds the recording paper from the recording paper storage box to the drawing area by rotating a paper feed roller, and moves the carriage out of the drawing area during the paper feeding operation. In the X-Y block, a claw part is attached to the movable part of the carriage, thereby releasing the pressure of the pinch roller and operating a clutch mechanism that transmits the rotational power of the recording paper moving means to the paper feed roller. and the carriage)
When the carriage is moved outside the drawing area, the movable part is lowered to lock the claw part to the frame of the main body, and the carriage is moved to a position outside the drawing area against the pressing force of the pinch roller. The configuration is to be retained.

[Industrial Field of Application] The present invention relates to an X-Y block, and more particularly to an X-Y plotter having a paper feed mechanism that automatically supplies recording paper.

With the spread of personal computers, there has been an increasing demand for displaying computer-processed information in graphics even in general households.
- It is desired to realize a Y plotter. X-Y like this
When plotting on multiple sheets in succession, it is very convenient to have a plotter with a paper feed mechanism that automatically feeds the next sheet of recording paper into the device after one sheet of drawing is completed. Simplification of its structure is desired.

[Conventional technology]

FIG. 2 shows an X having an automatic paper feeding function, which is the object of the present invention.
- It is an external perspective view of a Y plotter.

The figure shows a state in which the helad cover 50 made of semi-transparent resin is opened and the inside is visible.

In the figure, a carriage 2 holding a recording ben 1 is driven by a main belt 11 and runs left and right along main shafts 3 and 4.
slides in the X direction). On the other hand, the recording paper is placed on the stand 7 while being held between a frixigine roller 5 with a part of its circumference exposed on the stand 7 and a pair of pinch rollers 6a provided on the left and right.

Following the rotation of the friction roller 5, the device slides in the longitudinal direction (Y direction). The ben 1 is held in the carriage 2 so as to be movable downward, and comes into contact with the recording paper on the stand 7, thereby causing the above-mentioned X.

Two-dimensional drawing is performed by sliding Y. Reference numeral 23 denotes a pen holder for storing a plurality of pens, and the carriage 2 can change the pens to draw in multiple colors as needed. Reference numeral 31 denotes a recording paper storage box, which stores a plurality of sheets of recording paper and is separably inserted into the main body, and when drawing of -sheet is completed, a new recording paper is automatically fed into the block main body. ing.

In Figure 0, which explains the overall operation in more detail with reference to a diagram showing the main parts of the X-Y block in Figure 3, 8 is a motor for driving the sliding movement of the carriage, and when the motor 8 rotates, the timing belt 9 is driven. Through this, the rotational power is transmitted to the shaft 10, which in turn transmits the power to the main belt 11 which runs along the main shaft 3.4. Then, the carriage 2 slides in the X direction, and as a result, the pen 1 moves left and right to perform drawing in the X direction. Next, the moving operation of the recording paper during drawing will be explained using FIG. 4.5. In Figure 3.4, 12 is a motor for moving the recording paper, and the motor 1
2 rotates, the friction roller shaft 14 rotates via the timing belt 13, and the friction roller 5 rotates.
rotates. The friction roller 5 has a file-like surface sprayed with hard metal particles and has a large friction. It moves back and forth on the table by rotating 12. In FIG. 6, a rubber pinch roller 6a is pivotally supported on the rear side of the chart knob 6. A square shaft 15 to which a chart knob 6 is slidably attached is rotatably supported by a frame 30a at both ends, and an arm 16 is fixed, and is attached in the direction of arrow C by a spring 17 at the lower end of the arm 16. Forced. Due to the force of this spring 17, the pinch roller 6a is
is pressed by a strong force P against a Frixisine roller (not shown) below it, and the recording paper 18 placed on the friction roller is caused to follow the rotation of the Frixisine roller without slipping, thereby drawing in the Y direction. I do.

Next, the automatic paper feeding mechanism will be explained. FIG. 6 is a perspective view of the recording paper storage box.
are stacked and stored, and there is a paper feed roller 31a on the tip side,
It is provided with a paper feed gear 31b that meshes with the drive gear of the block body and drives the paper feed roller shaft. and,
When installed in the storage section 25 at the rear of the main body shown in FIG.
The feed gear 31b meshes with the drive gear of the main body, the roller shaft rotates in the direction of arrow E, and only one sheet of recording paper 32 on the uppermost stage is sent out in the direction of arrow F, and the main body's base 7 (see FIG. 3) ) and is held between the friction roller 5 and the pinch roller 6, completing preparation for drawing.

Next, the rotational drive mechanism of the paper feed roller will be explained with reference to FIG. In this apparatus, the motor 12 for driving the friction roller 5 also serves as a power source for rotating the paper feed roller 31a.

Then, only when feeding paper, the rotational force of this motor 12 is transmitted to the shaft 33 of the drive gear 26 by a clutch mechanism, and the paper feed roller 31a is rotated via the paper feed gear 31b meshed with the drive gear 26. ing.

That is, a gear 34 is fixed on the friction roller shaft 14, and a gear 35 that meshes with the gear 34 is slidably attached to a D-shaped cross section on the right side of the shaft 36.

Further, a pulley 37 is fixed to the shaft 36.
The rotation of the shaft 33 is transmitted via the belt 38 to the shaft 33.
It is configured to rotate a drive gear 26 fixed to. A block 39 is slidably attached to the main shaft 4 that guides the carriage. However, as shown in FIG. 5, a wire 16a is connected to this block 39 for rotating the arm 16 counterclockwise (in the direction of the arrow) and releasing the pressing force of the pinch roller 6a.

During the drawing operation, the pinch roller is pulled from the clockwise rotating arm 16 by the spring 17 via the wire 16a, and therefore the block 3 in FIG.
9 is on the left side, and the gear 35 is pushed by the block 39 and disengaged from the gear 34 and does not mesh.

Therefore, even if the motor 12 rotates, power is not transmitted to the paper feed roller 26 and no paper feeding operation is performed.

During the paper feeding operation, first, a carriage (not shown) passing through the main shaft 3.4 is moved out of the drawing area in the right direction in the figure.The carriage is brought into contact with the block 39 by the driving force of the motor for moving the carriage. , slide the block 39 to the right against the bias of the spring I7.As a result, the gear 35 biased to the right by the spring 41 slides to the right and meshes with the gear 34, causing the friction roller shaft 1 to slide.
4 rotational power is now transmitted to the shaft 36. In this way, when feeding paper, the carriage is slid outside the drawing area and the block is driven to the right, operating the clutch mechanism of the paper feed roller, and releasing the pressure on the pinch roller to freely feed the recording paper. Allows access to the platform.

Then, when a new recording paper is fed from the recording paper storage box onto the base of the main body, the carriage slides into the drawing area again, and the block 39 is connected to the pinch roller pressing spring (17 in FIG. 5) via the wire 16a. ) and moves to the left, the gears 35 and 34 disengage, the power transmission path from the motor 12 to the paper feed roller 26 is cut off, and the motor 12 performs a normal drawing operation.

[Problem to be solved by the invention]

In the above-mentioned X-Y plotter with a paper feeding mechanism, it is necessary to move the carriage to the right outside of the drawing area and hold it in that position while it is in contact with the block during the paper feeding operation. The block is always biased to the left by a pinch roller pressing spring 17. Conventionally, a servo motor for driving the carriage has supplied driving force for holding the block in its position against this biasing force. For this reason, the motor for driving the carriage is required to continuously output a larger driving force during paper feeding operation than when driving the slide during drawing, and there is a problem in that a large motor is required.

The present invention was created to solve the above problem by focusing on this point, and by focusing on the fact that the carriage has a movable part for moving the pen up and down, it is possible to self-maintain the carriage position at a position outside the drawing area. An object of the present invention is to reduce the size of the motor by preventing the load for releasing the pinch roller from being applied to the motor for moving the carriage.

[Means for Solving the Problems] The above object is to grip a pen in a vertically movable manner and slide the recording paper in a straight line, a pinch roller and a friction roller to pinch the recording paper, and to set the recording paper on the surface of the paper. a recording paper moving unit that linearly moves the recording paper in a direction perpendicular to the sliding movement of the carriage along the slide motion of the carriage; and a paper feeding mechanism that feeds the recording paper from the recording paper storage box to the drawing area by rotation of a paper feeding roller, and the paper feeding operation In the X-Y plotter, the carriage is moved out of the drawing area to release the pressure on the pinch roller and operate a clutch mechanism that transmits the rotational power of the recording paper moving means to the paper feed roller. A movable part is provided with a claw part, and when the carriage is moved out of the drawing area, the movable part is lowered and the claw part is latched to the frame of the main body to resist the pressing force of the pinch roller. This problem is solved by the X-Y plotter of the present invention, in which the carriage is held at a position outside the drawing area.

[Function] During paper feeding, the carriage resists the return force of the block,
Since it is self-held at a predetermined position outside the drawing area, the load on the motor for moving the carriage is reduced, and the motor can be made smaller.

〔Example〕

The present invention will be explained in detail below with reference to the accompanying drawings.

FIG. 1 shows a carriage holding section of an X-Y plotter according to the present invention. The present invention is applied to the X-Y plotter with a paper feeding mechanism described above in FIGS. 2 to 6, and since the other parts are the same as the conventional example, the explanation will be omitted. Note that the same reference numerals represent the same objects throughout the figures.

The fourth construction drawing is a view of the carriage 2 positioned on the right outer side of the drawing area, as seen from diagonally below the front side of the carriage.

In the figure, reference numeral 30 denotes a frame constituting the right side wall of the apparatus, to which the right end of a main shaft 3.4 that guides the carriage 2 is fixed. The carriage 2 has a main shaft 3.4 on its back side.
A movable part that has a base 2a that is slidably held by the main belt and moves left and right by a main belt, and a claw 20 that grips the ben l, and that is driven by a solenoid (not shown) and is held movable up and down with respect to the base 2a. It consists of 19. A block 39 is located between the carriage 2 and the frame 30, and is slidably attached to the main shaft 4. As mentioned above, this block is always pulled to the left by the pinch roller pressing spring (17 in FIG. 5). During the paper feeding operation, a carriage drive servo motor (not shown) is driven in a predetermined manner to move the carriage 2 from the drawing area to the paper feeding drive position at the right end of the main shaft 34 as indicated by arrow A.

Then, the right end 2b of the base 2a comes into contact with the block 39 and moves the block 39 to the right against the bias of the spring.

A feature of the present invention is that the carriage is configured to be locked to the frame at this position, thereby eliminating the need for motor driving force to hold the carriage at this position against the return force of the block.

Therefore, in this embodiment, the movable part 1 of the carriage 2
A claw portion 19a that projects downward is provided at the right end of the lower surface of the bottom. A protruding portion 30a that protrudes upward is provided on the upper end surface of the frame 30 located below the path of the claw portion 19a. This claw portion 19a and the protruding portion 30
The height relationship of a is such that in the raised position of the movable part 19 (the position where the ben l is lifted to separate it from the recording paper, the figure shows this state), they do not touch each other, and in the lowered position (as shown by the dotted line in the figure) They are set to lock together.

With this configuration, while the carriage 2 is moving from the drawing area on the left to the right for paper feeding operation, the solenoid for moving the movable part up and down is activated so that the movable part 19 is in the raised position. Control.

1. The claw portion 19a does not touch the locking portion 30a of the frame. Carriage 2 passes over the frame to the right. After passing the pen, operate the solenoid for vertically driving the pen in the carriage to move the movable part 1 to the downward position.
9 is lowered as shown by arrow B, and the drive of the motor for carriage slide operation is stopped. Then, the carriage is pushed by the block 39 and tries to move to the left, but the lowered claw portion 19a is locked in the locking portion 30a of the frame as shown by the dotted line and held in that position. In this state, no load is applied to the motor, so the load on the motor is reduced. When the predetermined paper feeding operation is completed, the solenoid is controlled to raise the movable part 19, and the claw part 1.9a and the protrusion part 30a are removed, thereby returning the carriage 2 normally to the drawing area. I can do it.

[Effects of the Invention] As explained above, according to the present invention, the X-Y movement in which the carriage is moved outside the drawing area to perform automatic paper feeding operation
In a plotter, since the carriage is self-held at the paper feeding position, there is no need to supply driving force from the carriage drive motor to maintain the release of the pinch roller pressing force, and overload of the motor is prevented. It becomes possible to achieve miniaturization, and the effect is remarkable.

[Brief explanation of drawings]

Figure 1 shows the main parts of the X-Y block, Figure 2 shows the x-
Figure 3 is a perspective view showing the main parts of the X-Y plotter, Figure 4 is a diagram showing the drive mechanism of the friction roller and paper feed roller, and Figure 5 is a diagram showing the pressing mechanism of the pinch roller. The figure shown in FIG. 6 is a perspective view of the recording paper storage box. In the figure: 1-ben, 2-carriage, 3.4
---Main shaft, 5--Friction roller, 6a--Pinch roller, 7--stand, 8---Carriage motor,
11-Main belt, 12...Motor for moving recording paper, 17-One pinch-Spring for pressing R, 19-Movable part of carriage, 19a...Claw part, 23-Pen holder,
25-- Recording paper storage box attachment part;
30...-Frame, 30a-Protrusion of frame, 31a--Paper feed roller, 31--Recording paper storage box, 32--Recording paper, 39--Block,
Heir #Yumira L Di卆, 4O-Spring, is. Gefuhon Akiaki's ! + Current drawing ÷ Diagram showing the roller pressing mechanism

Claims (1)

[Claims] A carriage (2) that grips the pen (1) in a vertically movable manner and slides linearly, a pinch roller (6a) and a friction roller (5) pinch the recording paper, a recording paper moving means for linearly moving the recording paper along the paper surface in a direction perpendicular to the sliding movement of the carriage (2); and a recording paper storage box (31) by rotation of a paper feed roller (31a).
) to feed the recording paper (32) to the drawing area, and by moving the carriage (2) out of the drawing area during paper feeding operation, the press of the pinch roller (6a) is released and In an X-Y plotter that operates a clutch mechanism that transmits rotational power of a recording paper moving means to the paper feed roller (31a), a claw part (19a) is provided on the movable part of the carriage (2), and the carriage (2) ) is moved out of the drawing area, the movable part (19) is lowered to lock the claw part (19a) to the frame (30a) of the main body, and the pressing force of the pinch roller (6a) An XY plotter characterized in that the carriage (2) is held at a position outside the drawing area.